DAMASK_EICMD/processing/pre/texture2ang.py

122 lines
3.2 KiB
Python
Executable File

#!/usr/bin/env python
import os,sys,math,re
from optparse import OptionParser
def integerFactorization(i):
j = int(math.floor(math.sqrt(float(i))))
while (j>1 and int(i)%j != 0):
j -= 1
return j
def positiveRadians(angle):
angle = math.radians(float(angle))
while angle < 0.0:
angle += 2.0*math.pi
return angle
def getHeader(sizeX,sizeY,step):
return [ \
'# TEM_PIXperUM 1.000000', \
'# x-star 0.509548', \
'# y-star 0.795272', \
'# z-star 0.611799', \
'# WorkingDistance 18.000000', \
'#', \
'# Phase 1', \
'# MaterialName Al', \
'# Formula Fe', \
'# Info', \
'# Symmetry 43', \
'# LatticeConstants 2.870 2.870 2.870 90.000 90.000 90.000', \
'# NumberFamilies 4', \
'# hklFamilies 1 1 0 1 0.000000 1', \
'# hklFamilies 2 0 0 1 0.000000 1', \
'# hklFamilies 2 1 1 1 0.000000 1', \
'# hklFamilies 3 1 0 1 0.000000 1', \
'# Categories 0 0 0 0 0 ', \
'#', \
'# GRID: SquareGrid', \
'# XSTEP: ' + str(step), \
'# YSTEP: ' + str(step), \
'# NCOLS_ODD: ' + str(sizeX), \
'# NCOLS_EVEN: ' + str(sizeX), \
'# NROWS: ' + str(sizeY), \
'#', \
'# OPERATOR: ODFsammpling', \
'#', \
'# SAMPLEID: ', \
'#', \
'# SCANID: ', \
'#', \
]
parser = OptionParser(usage='%prog [options] datafile(s)')
parser.add_option("-c", "--column", type="int",\
dest="column",\
help="starting column of Euler triplet")
parser.add_option("-s", "--skip", type="int",\
dest="skip",\
help="skip this many lines of heading info [%default]")
parser.set_defaults (column = 1)
parser.set_defaults (skip = 0)
(options, files) = parser.parse_args()
options.column -= 1
if files == []:
parser.error('no input file specified...')
sys.exit(1)
if options.column < 0:
parser.error('column needs to be 1,2,...')
sys.exit(1)
while len(files) > 0:
textureFilename = files.pop()
baseName = os.path.splitext(textureFilename)[0]
# open texture file and read content
textureFile = open(textureFilename)
content = textureFile.readlines()
textureFile.close()
m = re.match('(\d+)\s+head',content[0],re.I)
if m != None and options.skip == 0:
options.skip = int(m.group(1))+1
# extract orientation angles
angles = [map(positiveRadians,line.split()[options.column:options.column+3]) for line in content[options.skip:]]
nPoints = len(angles)
sizeY = integerFactorization(nPoints)
sizeX = nPoints / sizeY
print '%s: %i * %i = %i (== %i)'%(baseName,sizeX,sizeY,sizeX*sizeY,nPoints)
# write ang file
try:
# write header
angFile = open(baseName + '.ang','w')
for line in getHeader(sizeX,sizeY,1.0):
angFile.write(line + '\n')
# write data
counter = 0
for point in angles:
angFile.write(''.join(['%10.5f'%angle for angle in point])+
''.join(['%10.5f'%coord for coord in [counter%sizeX,counter//sizeX]])+
' 100.0 1.0 0 1 1.0\n')
counter += 1
angFile.close()
except:
print 'unable to write',baseName